121240142022 has 8 divisors (see below), whose sum is σ = 242480284056. Its totient is φ = 40413380672.

The previous prime is 121240142017. The next prime is 121240142039. The reversal of 121240142022 is 220241042121.

It is a sphenic number, since it is the product of 3 distinct primes.

121240142022 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 121240142022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10103345163 + ... + 10103345174.

It is an arithmetic number, because the mean of its divisors is an integer number (30310035507).

Almost surely, 2^121240142022 is an apocalyptic number.

121240142022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121240142022 is a wasteful number, since it uses less digits than its factorization.

121240142022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20206690342.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 121240142022 its reverse (220241042121), we get a palindrome (341481184143).

Subtracting 121240142022 from its reverse (220241042121), we obtain a palindrome (99000900099).

The spelling of 121240142022 in words is "one hundred twenty-one billion, two hundred forty million, one hundred forty-two thousand, twenty-two".